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Applications of Soft Computing Methods in Backbreak Assessment in Surface Mines: A Comprehensive Review
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作者 Mojtaba Yari Manoj Khandelwal +3 位作者 Payam Abbasi Evangelos I.Koutras Danial Jahed Armaghani Panagiotis G.Asteris 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第9期2207-2238,共32页
Geo-engineering problems are known for their complexity and high uncertainty levels,requiring precise defini-tions,past experiences,logical reasoning,mathematical analysis,and practical insight to address them effecti... Geo-engineering problems are known for their complexity and high uncertainty levels,requiring precise defini-tions,past experiences,logical reasoning,mathematical analysis,and practical insight to address them effectively.Soft Computing(SC)methods have gained popularity in engineering disciplines such as mining and civil engineering due to computer hardware and machine learning advancements.Unlike traditional hard computing approaches,SC models use soft values and fuzzy sets to navigate uncertain environments.This study focuses on the application of SC methods to predict backbreak,a common issue in blasting operations within mining and civil projects.Backbreak,which refers to the unintended fracturing of rock beyond the desired blast perimeter,can significantly impact project timelines and costs.This study aims to explore how SC methods can be effectively employed to anticipate and mitigate the undesirable consequences of blasting operations,specifically focusing on backbreak prediction.The research explores the complexities of backbreak prediction and highlights the potential benefits of utilizing SC methods to address this challenging issue in geo-engineering projects. 展开更多
关键词 Backbreak BLASTING soft computing methods prediction theory-guided machine learning
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State-of-the-art review of soft computing applications in underground excavations 被引量:50
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作者 Wengang Zhang Runhong Zhang +4 位作者 Chongzhi Wu Anthony Teck Chee Goh Suzanne Lacasse Zhongqiang Liu Hanlong Liu 《Geoscience Frontiers》 SCIE CAS CSCD 2020年第4期1095-1106,共12页
Soft computing techniques are becoming even more popular and particularly amenable to model the complex behaviors of most geotechnical engineering systems since they have demonstrated superior predictive capacity,comp... Soft computing techniques are becoming even more popular and particularly amenable to model the complex behaviors of most geotechnical engineering systems since they have demonstrated superior predictive capacity,compared to the traditional methods.This paper presents an overview of some soft computing techniques as well as their applications in underground excavations.A case study is adopted to compare the predictive performances of soft computing techniques including eXtreme Gradient Boosting(XGBoost),Multivariate Adaptive Regression Splines(MARS),Artificial Neural Networks(ANN),and Support Vector Machine(SVM) in estimating the maximum lateral wall deflection induced by braced excavation.This study also discusses the merits and the limitations of some soft computing techniques,compared with the conventional approaches available. 展开更多
关键词 soft computing method(scM) Underground excavations Wall deformation Predictive capacity
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Development of multiple soft computing models for estimating organic and inorganic constituents in coal 被引量:8
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作者 M.Onifade A.I.Lawal +4 位作者 J.Abdulsalam B.Genc S.Bada K.O.Said A.R.Gbadamosi 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2021年第3期483-494,共12页
The distribution of the various organic and inorganic constituents and their influences on the combustion of coal has been comprehensively studied.However,the combustion characteristics of pulverized coal depend not o... The distribution of the various organic and inorganic constituents and their influences on the combustion of coal has been comprehensively studied.However,the combustion characteristics of pulverized coal depend not only on rank but also on the composition,distribution,and combination of the macerals.Unlike the proximate and ultimate analyses,determining the macerals in coal involves the use of sophisticated microscopic instrumentation and expertise.In this study,an attempt was made to predict the amount of macerals(vitrinite,inertinite,and liptinite)and total mineral matter from the Witbank Coalfields samples using the multiple input single output white-box artificial neural network(MISOWB-ANN),gene expression programming(GEP),multiple linear regression(MLR),and multiple nonlinear regression(MNLR).The predictive models obtained from the multiple soft computing models adopted are contrasted with one another using difference,efficiency,and composite statistical indicators to examine the appropriateness of the models.The MISOWB-ANN provides a more reliable predictive model than the other three models with the lowest difference and highest efficiency and composite statistical indicators. 展开更多
关键词 Multiple soft computing models COAL Organic and inorganic constituents
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Soft Computing Based Procurement Planning of Time-variable Demand in Manufacturing Systems 被引量:1
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作者 Kai Leung Yung Wai Hung Ip Ding-Wei Wang 《International Journal of Automation and computing》 EI 2007年第1期80-87,共8页
Procurement planning with discrete time varying demand is an important problem in Enterprise Resource Planning (ERP). It can be described using the non-analytic mathematical programming model proposed in this paper.... Procurement planning with discrete time varying demand is an important problem in Enterprise Resource Planning (ERP). It can be described using the non-analytic mathematical programming model proposed in this paper. To solve the model we propose to use a fuzzy decision embedded genetic algorithm. The algorithm adopts an order strategy selection to simplify the original real optimization problem into binary ones. Then, a fuzzy decision quantification method is used to quantify experience from planning experts. Thus, decision rules can easily be embedded in the computation of genetic operations. This approach is applied to purchase planning problem in a practical machine tool works, where satisfactory results have been achieved. 展开更多
关键词 Purchase planning Enterprise Resource Planning (ERP) soft computing genetic algorithm fuzzy decision inventory control.
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Development of mathematically motivated hybrid soft computing models for improved predictions of ultimate bearing capacity of shallow foundations
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作者 Abiodun Ismail Lawal Sangki Kwon 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2023年第3期747-759,共13页
Ultimate bearing capacity(UBC)is a key subject in geotechnical/foundation engineering as it determines the limit of loads imposed on the foundation.The most reliable means of determining UBC is through experiment,but ... Ultimate bearing capacity(UBC)is a key subject in geotechnical/foundation engineering as it determines the limit of loads imposed on the foundation.The most reliable means of determining UBC is through experiment,but it is costly and time-consuming which has led to the development of various models based on the simplified assumptions.The outcomes of the models are usually validated with the experimental results,but a large gap usually exists between them.Therefore,a model that can give a close prediction of the experimental results is imperative.This study proposes a grasshopper optimization algorithm(GOA)and salp swarm algorithm(SSA)to optimize artificial neural networks(ANNs)using the existing UBC experimental database.The performances of the proposed models are evaluated using various statistical indices.The obtained results are compared with the existing models.The proposed models outperformed the existing models.The proposed hybrid GOA-ANN and SSA-ANN models are then transformed into mathematical forms that can be incorporated into geotechnical/foundation engineering design codes for accurate UBC measurements. 展开更多
关键词 Ultimate bearing capacity(UBC) GEOTECHNICS Grasshopper optimization algorithm(GOA) Salp swarm algorithm(SSA) soft computing(sc)method
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DNA BIO SOFT COMPUTING AND ITS APPLICATIONS TO INTELLIGENT SYSTEMS
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作者 任立红 丁永生 邵世煌 《Journal of Shanghai Jiaotong university(Science)》 EI 1999年第2期97-103,共7页
Recently, the possibility of using DNA as a computing tool arouses wide interests of many researchers. In this paper, we first explored the mechanism of DNA computing and its biological mathematics based on the mechan... Recently, the possibility of using DNA as a computing tool arouses wide interests of many researchers. In this paper, we first explored the mechanism of DNA computing and its biological mathematics based on the mechanism of biological DNA. Then we integrated DNA computing with evolutionary computation, fuzzy systems, neural networks and chaotic systems in soft computing technologies. Finally, we made some prospects on the further work of DNA bio soft computing. 展开更多
关键词 DNA computing soft computing EVOLUTIONARY computation fuzzy SYSTEMS neural networks CHAOTIC SYSTEMS
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SOFT COMPUTING APPROACH FOR NOISY IMAGE RESTORATION
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作者 刘伟 王磊 《Journal of Shanghai Jiaotong university(Science)》 EI 2000年第2期28-32,共5页
A genetic learning algorithm based fuzzy neural network was proposed for noisy image restoration, which can adaptively find and extract the fuzzy rules contained in noise. It can efficiently remove image noise and pre... A genetic learning algorithm based fuzzy neural network was proposed for noisy image restoration, which can adaptively find and extract the fuzzy rules contained in noise. It can efficiently remove image noise and preserve the detail image information as much as possible. The experimental results show that the proposed approach is able to performa far better than conventional noise removing techniques. 展开更多
关键词 soft computing GENETIC algorithms fuzzy NEURAL network image RESTORATION Document code:A
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Soft Computing Based Metaheuristic Algorithms for Resource Management in Edge Computing Environment
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作者 Nawaf Alhebaishi Abdulrhman M.Alshareef +4 位作者 Tawfiq Hasanin Raed Alsini Gyanendra Prasad Joshi Seongsoo Cho Doo Ill Chul 《Computers, Materials & Continua》 SCIE EI 2022年第9期5233-5250,共18页
In recent times,internet of things(IoT)applications on the cloud might not be the effective solution for every IoT scenario,particularly for time sensitive applications.A significant alternative to use is edge computi... In recent times,internet of things(IoT)applications on the cloud might not be the effective solution for every IoT scenario,particularly for time sensitive applications.A significant alternative to use is edge computing that resolves the problem of requiring high bandwidth by end devices.Edge computing is considered a method of forwarding the processing and communication resources in the cloud towards the edge.One of the considerations of the edge computing environment is resource management that involves resource scheduling,load balancing,task scheduling,and quality of service(QoS)to accomplish improved performance.With this motivation,this paper presents new soft computing based metaheuristic algorithms for resource scheduling(RS)in the edge computing environment.The SCBMARS model involves the hybridization of the Group Teaching Optimization Algorithm(GTOA)with rat swarm optimizer(RSO)algorithm for optimal resource allocation.The goal of the SCBMA-RS model is to identify and allocate resources to every incoming user request in such a way,that the client’s necessities are satisfied with the minimum number of possible resources and optimal energy consumption.The problem is formulated based on the availability of VMs,task characteristics,and queue dynamics.The integration of GTOA and RSO algorithms assist to improve the allocation of resources among VMs in the data center.For experimental validation,a comprehensive set of simulations were performed using the CloudSim tool.The experimental results showcased the superior performance of the SCBMA-RS model interms of different measures. 展开更多
关键词 Resource scheduling edge computing soft computing fitness function virtual machines
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Short-Term Load Forecasting Using Soft Computing Techniques
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作者 D. K. Chaturvedi Sinha Anand Premdayal Ashish Chandiok 《International Journal of Communications, Network and System Sciences》 2010年第3期273-279,共7页
Electric load forecasting is essential for developing a power supply strategy to improve the reliability of the ac power line data network and provide optimal load scheduling for developing countries where the demand ... Electric load forecasting is essential for developing a power supply strategy to improve the reliability of the ac power line data network and provide optimal load scheduling for developing countries where the demand is increased with high growth rate. In this paper, a short-term load forecasting realized by a generalized neuron–wavelet method is proposed. The proposed method consists of wavelet transform and soft computing technique. The wavelet transform splits up load time series into coarse and detail components to be the features for soft computing techniques using Generalized Neurons Network (GNN). The soft computing techniques forecast each component separately. The modified GNN performs better than the traditional GNN. At the end all forecasted components is summed up to produce final forecasting load. 展开更多
关键词 WAVELET TRANSFORM SHORT TERM Load Forecasting soft computing TECHNIQUES
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Improved Network Validity Using Various Soft Computing Techniques
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作者 M.Yuvaraju R.Elakkiyavendan 《Intelligent Automation & Soft Computing》 SCIE 2023年第5期1465-1477,共13页
Nowadays,when a life span of sensor nodes are threatened by the shortage of energy available for communication,sink mobility is an excellent technique for increasing its lifespan.When communicating via a WSN,the use o... Nowadays,when a life span of sensor nodes are threatened by the shortage of energy available for communication,sink mobility is an excellent technique for increasing its lifespan.When communicating via a WSN,the use of nodes as a transmission method eliminates the need for a physical medium.Sink mobility in a dynamic network topology presents a problem for sensor nodes that have reserved resources.Unless the route is revised and changed to reflect the location of the mobile sink location,it will be inefficient for delivering data effec-tively.In the clustering strategy,nodes are grouped together to improve commu-nication,and the cluster head receives data from compactable nodes.The sink receives the aggregated data from the head.The cluster head is the central node in the conventional technique.A single node uses more energy than a node that is routed to a dead node.Increasing the number of people using a route shortens its lifespan.The proposed work demonstrates the effectiveness with which sensor node paths can be modified at a lower cost by utilising the virtual grid.The best routes are maintained mostly by sink node communication on routes based on dynamic route adjustment(VGDRA).Only specific nodes are acquired to re-align data supply to the mobile sink in accordance with new paradigms of route recon-struction.According to the results,VGDRA schemes have a longer life span because of the reduced number of loops. 展开更多
关键词 soft computing intelligent systems wireless networks SENSOR
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Malignant giant cell tumor in the left upper arm soft tissue of an adolescent:A case report
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作者 Wen-Peng Huang Li-Na Zhu +2 位作者 Rui Li Li-Ming Li Jian-Bo Gao 《World Journal of Clinical Cases》 SCIE 2021年第15期3704-3710,共7页
BACKGROUND Giant cell tumor of soft tissue(GCT-ST)is an extremely rare low-grade soft tissue tumor that is originates in superficial tissue and rarely spreads deeper.GCT-ST has unpredictable behavior.It is mainly beni... BACKGROUND Giant cell tumor of soft tissue(GCT-ST)is an extremely rare low-grade soft tissue tumor that is originates in superficial tissue and rarely spreads deeper.GCT-ST has unpredictable behavior.It is mainly benign,but may sometimes become aggressive and potentially increase in size within a short period of time.CASE SUMMARY A 17-year-old man was suspected of having a fracture,based on radiography following left shoulder trauma.One month later,the swelling of the left shoulder continued to increase and the pain was obvious.Computed tomography(CT)revealed a soft tissue mass with strip-like calcifications in the left shoulder.The mass invaded the adjacent humerus and showed an insect-like area of destruction at the edge of the cortical bone of the upper humerus.The marrow cavity of the upper humerus was enlarged,and a soft tissue density was seen in the medullary cavity.Thoracic CT revealed multiple small nodules beneath the pleura of both lungs.A bone scan demonstrated increased activity in the left shoulder joint and proximal humerus.The mass showed mixed moderate hypointensity and hyperintensity on T1-weighted images,and mixed hyperintensity on T2-weighted fat-saturated images.The final diagnosis of GCT-ST was confirmed by pathology.CONCLUSION GCT-STs should be considered in the differential diagnosis of soft tissue tumors and monitored for large increases in size. 展开更多
关键词 Bone scan Giant cell tumor soft tissue Tomography X-ray computed Magnetic resonance imaging Case report
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SPECTRAL TECHNIQUES AND SOFT COMPUTING
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作者 Claudio Moraga 《Analysis in Theory and Applications》 1998年第4期1-11,共11页
Soft Computing denotes a set of paradigma related to cognitive modelling, which in the last years have been intensively studied, since important synergy effects among members of this set have been disclosed. Because o... Soft Computing denotes a set of paradigma related to cognitive modelling, which in the last years have been intensively studied, since important synergy effects among members of this set have been disclosed. Because of this, Soft Computing has emerged as an environment to effectively work with red world complex problems. Fuzzy Logic, Genetic Algorithms and Neural Networks are possibly the best known representatives of Soft Computing. In this paper we show how Spectral Techniques may help to further study these subjects or to improve their performance. The name Spectral Techniques comprises Methods and Applications based on Abstract Harmonic Analysis. 展开更多
关键词 SPECTRAL TECHNIQUES AND soft computing
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Human Being Emotion in Cognitive Intelligent Robotic Control Pt I: Quantum/Soft Computing Approach
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作者 Alla A.Mamaeva Andrey V.Shevchenko Sergey V.Ulyanov 《Artificial Intelligence Advances》 2020年第1期1-30,共30页
The article consists of two parts.Part I shows the possibility of quantum/soft computing optimizers of knowledge bases(QSCOptKB™)as the toolkit of quantum deep machine learning technology implementation in the solutio... The article consists of two parts.Part I shows the possibility of quantum/soft computing optimizers of knowledge bases(QSCOptKB™)as the toolkit of quantum deep machine learning technology implementation in the solution’s search of intelligent cognitive control tasks applied the cognitive helmet as neurointerface.In particular case,the aim of this part is to demonstrate the possibility of classifying the mental states of a human being operator in on line with knowledge extraction from electroencephalograms based on SCOptKB™and QCOptKB™sophisticated toolkit.Application of soft computing technologies to identify objective indicators of the psychophysiological state of an examined person described.The role and necessity of applying intelligent information technologies development based on computational intelligence toolkits in the task of objective estimation of a general psychophysical state of a human being operator shown.Developed information technology examined with special(difficult in diagnostic practice)examples emotion state estimation of autism children(ASD)and dementia and background of the knowledge bases design for intelligent robot of service use is it.Application of cognitive intelligent control in navigation of autonomous robot for avoidance of obstacles demonstrated. 展开更多
关键词 Neural interface Computational intelligence toolkit Intelligent control system Deep machine learning Emotions Quantum soft computing optimizer
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Robotic Smart Prosthesis Arm with BCI and Kansei/Kawaii/Affective Engineering Approach.Pt I: Quantum Soft Computing Supremacy
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作者 Alexey V.Nemchaninov Alena V.Nikolaeva +1 位作者 Sergey V.Ulyanov Andrey G.Reshetnikov 《Artificial Intelligence Advances》 2020年第2期68-87,共20页
A description of the design stage and results of the development of the conceptual structure of a robotic prosthesis arm is given.As a result,a prototype of man-made smart prosthesis on a 3D printer as well as a found... A description of the design stage and results of the development of the conceptual structure of a robotic prosthesis arm is given.As a result,a prototype of man-made smart prosthesis on a 3D printer as well as a foundation for computational intelligence presented.The application of soft computing technology(the first step of IT)allows to extract knowledge directly from the physical signal of the electroencephalogram,as well as to form knowledge-based intelligent robust control of the lower performing level taking into account the assessment of the patient’s emotional state.The possibilities of applying quantum soft computing technologies(the second step of IT)in the processes of robust filtering of electroencephalogram signals for the formation of mental commands of robotic prosthetic arm discussed.Quantum supremacy benchmark of intelligent control simulation demonstrated. 展开更多
关键词 Robotic prosthetic arm Cognitive computational intelligence Brain-computer-device neurointerface Mental commands Quantum soft computing Fuzzy cognitive controller Quantum supremacy benchmark
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Intelligent Robust Control of Redundant Smart Robotic Arm Pt I: Soft Computing KB Optimizer - Deep Machine Learning IT
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作者 Alena V.Nikolaeva Sergey V.Ulyanov 《Artificial Intelligence Advances》 2020年第1期31-58,共28页
Redundant robotic arm models as a control object discussed.Background of computational intelligence IT on soft computing optimizer of knowledge base in smart robotic manipulators introduced.Soft computing optimizer is... Redundant robotic arm models as a control object discussed.Background of computational intelligence IT on soft computing optimizer of knowledge base in smart robotic manipulators introduced.Soft computing optimizer is the sophisticated computational intelligence toolkit of deep machine learning SW platform with optimal fuzzy neural network structure.The methods for development and design technology of control systems based on soft computing introduced in this Part 1 allow one to implement the principle of design an optimal intelligent control systems with a maximum reliability and controllability level of a complex control object under conditions of uncertainty in the source data,and in the presence of stochastic noises of various physical and statistical characters.The knowledge bases formed with the application of soft computing optimizer produce robust control laws for the schedule of time dependent coefficient gains of conventional PID controllers for a wide range of external perturbations and are maximally insensitive to random variations of the structure of control object.The robustness is achieved by application a vector fitness function for genetic algorithm,whose one component describes the physical principle of minimum production of generalized entropy both in the control object and the control system,and the other components describe conventional control objective functionals such as minimum control error,etc.The application of soft computing technologies(Part I)for the development a robust intelligent control system that solving the problem of precision positioning redundant(3DOF and 7 DOF)manipulators considered.Application of quantum soft computing in robust intelligent control of smart manipulators in Part II described. 展开更多
关键词 Intelligent control system Knowledge base soft computing technology DECOMPOSITION Redundant robotic manipulator
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Intelligent Cost Modeling Based on Soft Computing for Avionics Systems
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作者 朱力立 李庄生 许宗泽 《Journal of Electronic Science and Technology of China》 2006年第2期136-143,共8页
In parametric cost estimating, objections to using statistical Cost Estimating Relationships (CERs) and parametric models include problems of low statistical significance due to limited data points, biases in the un... In parametric cost estimating, objections to using statistical Cost Estimating Relationships (CERs) and parametric models include problems of low statistical significance due to limited data points, biases in the underlying data, and lack of robustness. Soft Computing (SC) technologies are used for building intelligent cost models. The SC models are systemically evaluated based on their training and prediction of the historical cost data of airborne avionics systems. Results indicating the strengths and weakness of each model are presented. In general, the intelligent cost models have higher prediction precision, better data adaptability, and stronger self-learning capability than the regression CERs. 展开更多
关键词 avionics system soft computing sc parametric cost estimation intelligent model
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Intelligent Control of Mobile Robot with Redundant Manipulator & Stereovision: Quantum / Soft Computing Toolkit
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作者 Kirill V.Koshelev Alena V.Nikolaeva +1 位作者 Andrey G.Reshetnikov Sergey V.Ulyanov 《Artificial Intelligence Advances》 2020年第2期1-31,共31页
The task of an intelligent control system design applying soft and quantum computational intelligence technologies discussed.An example of a control object as a mobile robot with redundant robotic manipulator and ster... The task of an intelligent control system design applying soft and quantum computational intelligence technologies discussed.An example of a control object as a mobile robot with redundant robotic manipulator and stereovision introduced.Design of robust knowledge bases is performed using a developed computational intelligence-quantum/soft computing toolkit(QC/SCOptKBTM).The knowledge base self-organization process of fuzzy homogeneous regulators through the application of end-to-end IT of quantum computing described.The coordination control between the mobile robot and redundant manipulator with stereovision based on soft computing described.The general design methodology of a generalizing control unit based on the physical laws of quantum computing(quantum information-thermodynamic trade-off of control quality distribution and knowledge base self-organization goal)is considered.The modernization of the pattern recognition system based on stereo vision technology presented.The effectiveness of the proposed methodology is demonstrated in comparison with the structures of control systems based on soft computing for unforeseen control situations with sensor system.The main objective of this article is to demonstrate the advantages of the approach based on quantum/soft computing. 展开更多
关键词 Quantum/soft computing optimizer Knowledge base Fuzzy controller Quantum fuzzy inference Multi-agent systems Mobile robot stereo vision
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An Effective Diagnosis of Diabetic Retinopathy with Aid of Soft Computing Approaches
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作者 Nasr Y. Gharaibeh Abdullah A. Alshorman 《Journal of Energy and Power Engineering》 2016年第8期474-485,共12页
DR (diabetic retinopathy) is a most probable reason of blindness in adults, but the only remedy or escape from blindness is that we have to detect DR as early. Several automated screening techniques are used to dete... DR (diabetic retinopathy) is a most probable reason of blindness in adults, but the only remedy or escape from blindness is that we have to detect DR as early. Several automated screening techniques are used to detect individual lesions in the retina. Still it takes more dependency of time and experts. To overcome those problems and also automatically detect DR in easier and faster way, we took into soft computing approaches in our proposed work. Our proposed work will discuss several amounts of soft computing algorithms, it can detect DR features (landmark and retinal lesions) in an easy manner. Processes includes are: (1) Pre-processing; (2) Optic disc localization and segmentation; (3) Localization of fovea; (4) Blood vessel segmentation; (5) Feature extraction; (6) Feature selection; Finally (7) detection of diabetic retinopathy stages (mild, moderate, severe and PDR). Our experimental results based on Matlab simulation and it takes databases of STARE and DRIVE. Proposed effective soft computing approaches should improve the sensitivity, specificity and accuracy. 展开更多
关键词 Diabetic retinopathy soft computing MICROANEURYSM EXUDATES hemorrhage and blood vessel.
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Soft computing application in bioinformatics
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作者 MITRA Sushmita 《重庆邮电大学学报(自然科学版)》 2008年第3期348-354,共7页
This article provides an outline on a recent application of soft computing for the mining of microarray gene expressions.We describe investigations with an evolutionary-rough feature selection algorithm for feature se... This article provides an outline on a recent application of soft computing for the mining of microarray gene expressions.We describe investigations with an evolutionary-rough feature selection algorithm for feature selection and classification on cancer data.Rough set theory is employed to generate reducts,which represent the minimal sets of non-redundant features capable of discerning between all objects,in a multi-objective framework.The experimental results demonstrate the effectiveness of the methodology on three cancer datasets. 展开更多
关键词 数据处理 信息技术 计算方法 数据集 粗糙集
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Sclerosing epithelioid fibrosarcoma of the pancreas:A case report
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作者 Meng-Qing Sun Li-Na Guo +3 位作者 Yan You Yan-Yu Qiu Xiao-Dong He Xian-Lin Han 《World Journal of Clinical Cases》 SCIE 2024年第26期5983-5989,共7页
BACKGROUND A sclerosing epithelioid fibrosarcoma(SEF)is a rare malignant fibroblastic soft tissue tumor that rarely occurs in intra-abdominal organs.A case of a SEF in the pancreatic head is reported herein,including ... BACKGROUND A sclerosing epithelioid fibrosarcoma(SEF)is a rare malignant fibroblastic soft tissue tumor that rarely occurs in intra-abdominal organs.A case of a SEF in the pancreatic head is reported herein,including its clinical manifestations,preoperative imaging features,gross specimen and pathological findings.CASE SUMMARY A 33-year-old male patient was admitted to Peking Union Medical College Hospital in December 2023 due to a one-year history of intermittent upper abdominal pain and the discovery of a pancreatic mass.The patient underwent an enhanced computed tomography scan of the abdomen,which revealed a welldefined,round mass with clear borders and calcifications in the pancreatic head.The mass exhibited progressive,uneven mild enhancement,measuring approximately 6.6 cm×6.3 cm.The patient underwent laparoscopic pylorus-preserving pancreaticoduodenectomy.Postoperative pathological examination revealed that the lesion was consistent with a SEF.At the 3-month postoperative follow-up,the patient did not report any short-term complications,and there were no signs of tumor recurrence.CONCLUSION SEFs are rare malignant fibrous soft tissue tumors.SEFs rarely develop in the pancreas,and its preoperative diagnosis depends on imaging findings,with confirmation depending on pathological examination and immunohistochemistry.Currently,only four cases of pancreatic SEF have been reported in studies written in English.This case is the first reported case of a pancreatic SEF by a clinical physician. 展开更多
关键词 sclerosing epithelioid fibrosarcoma of the pancreas Abdominal malignant fibroblastic soft tissue tumor Abdominal enhanced computed tomography Laparoscopic pancreaticoduodenectomy Case report
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